Multiple people were shot by a man wearing a doctor’s coat inside a New York City hospital Friday afternoon, sources say, and the shooter is deceased, police said.

Jonathan Dienst and Tom Winter reports: A gunman wearing a doctor’s coat shot multiple people inside a New York City hospital in what appears to be a case of workplace violence, sources tell News 4 and NBC News.

The rifle-wielding gunman at Bronx Lebanon Hospital was dressed in a white doctor’s-type coat when he shot at least three people shortly before 3 p.m., sources tell News 4.

The suspect is dead, NYPD spokesman J. Peter Donald said in a tweet around 4 p.m. Multiple senior NYPD officials tells NBC News the suspect is a former employee at Bronx Lebanon.

Police response remains heavy and cautious as authorities make sure he was a lone actor.

A sea of police cars line the street outside Bronx Lebanon Hospital Friday amid reports of shots fired within the hospital.

Chopper Over NYC Hospital Amid Reports of Active Shooter

As members of the NYPD’s most-armed units responded to the then-active shooter situation, a sea of patrol and tactical vehicles gridlocked the streets around the hospital on Grand Concourse, and police surveyed the roof of the building with their guns drawn, Chopper 4 over the scene shows.

A staff member at the hospital tells News 4 it was under lockdown as police helped to bring people out floor by floor.

A person is wheeled out of Bronx Lebanon Hospital in a stretcher amid reports of an active shooter in the hospital wearing a white lab coat … (read more)